Timing device for explosive-engines.



1..H. MALHOIT & A. 0. POHMR.

TIMING DEVICE FOR EXPLOSWE menus.

APPLICATION nun Jun/26.1w.

Patented Mar. 11, 1919.

UNITED STATES PATENT -osricn..

.rosnrn H. MALHOIT, or wns'r HAVEN, am) ALFRED 0. mm or xiaw'finvnir:

CONNECTICUT.

TIMING DEVICE FOR EIYLOSliVE-ENGINES.

Specification of Letters rateiit' Pabehtd Application and July as, 1917.semi Ko..182.85&

To allaohont it may concern Be it known that we, Jossrn H. Maugorr andALFRED O. POIRIER, citizens of the United States, residin respectively,at West Haven drawings and the characters of reference marked thereon,to be a full, clear, and exact description of the same, and which saiddrawings constitute part of this application, and represent, in-

Figure 1 a face view, partly-in section, of a timing device forexplosive engines constructed in accordance with my invention.

Fig. 2 'a top or plan view of the same.

Fig. 3 a sectional view on the line 3-3 of F 1g.-1.1

Fig." 4a perspective view of the timing ring-with its ring-insulatingmaterial in contact: shoes.

.This invention relates to an improvement in timing devices forexplosive engines. In the more general construction of timing devicesfor explosive engines, the casing to which the wires are attached ismoved to advance or retard the spark, and this constant movin tends tobreak the wires. Furthermore, In case of necessity, it is dilficult torepair.-

a casing. which will be fixed with relation to the engine and provide amovable ring which may be turned in the casing, and so that the wiresare not disturbed in adjusting the timer, and the terminals for the:wire are carried to. a convenient point; and the mvention consists inthe construction hereinafter described and particularly recited in theclaims.

In carryin out our invention we employ a casin 4 at opted to be rigidlysecured to an expi osive gas engine in the usual way. Openin from thetop of the casingis an upwardly extending tubular arm 5 supporting atits upper ends four terminalsfi for wires 7 which lead-downward throughthe tube into the forward end of the casing which contains a block 8 ofinsulating material in which is located a series of hori- The object ofthis invention is to provide sockets located in the said block zonally gkets 9 with mesmewires 7 are respectively each socket is a. lun'ger 10forced optward a s ring 11. hese'pl ,are a. t 1e path of the inner whichare mounted in an insulating which in-turnis fixed .in a timing ver 15projecting outward thre Mark-masts? ges'of four :12 e s located entirelywithin the casing :1 is provided with an upwardlycrtending-le-f -3 ugh-aslot-16 in the top of the casing. The lowerend 17 i of the lever isreduced in size to permit the lever to pass outward through a clearanceslot 18 intersecting one end of the slot 16 and so that the timer-ringme be removed from the casing when desi The lever 15 is adapted to beoperated from any eorsvenient point,- usually atthe steering wheel. Theusual timing roller 19 moved by the usual'timing cam shaft travelsaround the inner face of an'insulating r' it passes from one shoe to.one er it makes and breaks 'a circuit to give a spark. If the ring .ismoved in one direction 'or the other, it will advance or retard the timeof 13, and as so protected that the danger of their becoming saturatedwith oil so as to short circuit, is avoided.

\Ve claim I 1. A timing device of comprising a casing formed with a,slot, a tubular arln opening intothe casi and pro: jecting upwardtherefrom, a bloc of insulating material mounted in the said casing, aseries of horizontall arranged contact contacts in said sockets, utimingring entirely within and movable in said casin and formed with a leverprojecting outwar through the slot in the casing, a ring of insulatingmaterial fixed to the said timing ring, shoes mounted in the insulatinmaterial carried by the rin the-inner ges of the shoes arranged in thepath of the said contacts in the casing.

2. A ti'ming device of the class described comprising a, casing. a blockof insulating material mounted in the said casing,'contacts mountedhorizontally in said block, a. timing the class described in a a ring ofinsulating material fixed to sm'ibing witngsss.

ring mou nbedpntirely within the said cus- 1M5 specification in thepresence of two b.

timin ring, shoes mounted on the ide of he insulating ring in the timingggfzgg fig '6 tin and-adapted to have their edges engage J i wit 1 saidcontacts in theblpc'k, and means Witnesses;

for moving said timing ring. C WEED In be 'mon whereof we have si ned F.C. I'L\nu:.

